
package org.owasp.webgoat.lessons.GoatHillsFinancial;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import org.apache.ecs.Element;
import org.apache.ecs.ElementContainer;
import org.apache.ecs.html.A;
import org.apache.ecs.html.IMG;
import org.owasp.webgoat.lessons.RandomLessonAdapter;
import org.owasp.webgoat.session.ParameterNotFoundException;
import org.owasp.webgoat.session.UnauthenticatedException;
import org.owasp.webgoat.session.UnauthorizedException;
import org.owasp.webgoat.session.ValidationException;
import org.owasp.webgoat.session.WebSession;


/***************************************************************************************************
 * 
 * 
 * This file is part of WebGoat, an Open Web Application Security Project utility. For details,
 * please see http://www.owasp.org/
 * 
 * Copyright (c) 2002 - 2007 Bruce Mayhew
 * 
 * This program is free software; you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program; if
 * not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 * 
 * Getting Source ==============
 * 
 * Source for this application is maintained at code.google.com, a repository for free software
 * projects.
 * 
 * For details, please see http://code.google.com/p/webgoat/
 */
public class GoatHillsFinancial extends RandomLessonAdapter
{
	public final static A ASPECT_LOGO = new A().setHref("http://www.aspectsecurity.com")
			.addElement(
						new IMG("images/logos/aspect.jpg").setAlt("Aspect Security").setBorder(0).setHspace(0)
								.setVspace(0));

	public final static String DESCRIPTION = "description";

	public final static String DISCIPLINARY_DATE = "disciplinaryDate";

	public final static String DISCIPLINARY_NOTES = "disciplinaryNotes";

	public final static String CCN_LIMIT = "ccnLimit";

	public final static String CCN = "ccn";

	public final static String SALARY = "salary";

	public final static String START_DATE = "startDate";

	public final static String MANAGER = "manager";

	public final static String ADDRESS1 = "address1";

	public final static String ADDRESS2 = "address2";

	public final static String PHONE_NUMBER = "phoneNumber";

	public final static String TITLE = "title";

	public final static String SSN = "ssn";

	public final static String LAST_NAME = "lastName";

	public final static String FIRST_NAME = "firstName";

	public final static String PASSWORD = "password";

	public final static String EMPLOYEE_ID = "employee_id";

	public final static String USER_ID = "user_id";

	public final static String SEARCHNAME = "search_name";

	public final static String SEARCHRESULT_ATTRIBUTE_KEY = "SearchResult";

	public final static String EMPLOYEE_ATTRIBUTE_KEY = "Employee";

	public final static String STAFF_ATTRIBUTE_KEY = "Staff";

	public final static String LOGIN_ACTION = "Login";

	public final static String LOGOUT_ACTION = "Logout";

	public final static String LISTSTAFF_ACTION = "ListStaff";

	public final static String SEARCHSTAFF_ACTION = "SearchStaff";

	public final static String FINDPROFILE_ACTION = "FindProfile";

	public final static String VIEWPROFILE_ACTION = "ViewProfile";

	public final static String EDITPROFILE_ACTION = "EditProfile";

	public final static String UPDATEPROFILE_ACTION = "UpdateProfile";

	public final static String CREATEPROFILE_ACTION = "CreateProfile";

	public final static String DELETEPROFILE_ACTION = "DeleteProfile";

	public final static String ERROR_ACTION = "error";

	private final static Integer DEFAULT_RANKING = new Integer(125);

	private Map<String, LessonAction> lessonFunctions = new Hashtable<String, LessonAction>();

	public GoatHillsFinancial()
	{
		String myClassName = parseClassName(this.getClass().getName());
		registerActions(myClassName);
	}

	protected void registerActions(String className)
	{
		registerAction(new ListStaff(this, className, LISTSTAFF_ACTION));
		registerAction(new SearchStaff(this, className, SEARCHSTAFF_ACTION));
		registerAction(new ViewProfile(this, className, VIEWPROFILE_ACTION));
		registerAction(new EditProfile(this, className, EDITPROFILE_ACTION));
		registerAction(new EditProfile(this, className, CREATEPROFILE_ACTION));

		// These actions are special in that they chain to other actions.
		registerAction(new Login(this, className, LOGIN_ACTION, getAction(LISTSTAFF_ACTION)));
		registerAction(new Logout(this, className, LOGOUT_ACTION, getAction(LOGIN_ACTION)));
		registerAction(new FindProfile(this, className, FINDPROFILE_ACTION, getAction(VIEWPROFILE_ACTION)));
		registerAction(new UpdateProfile(this, className, UPDATEPROFILE_ACTION, getAction(VIEWPROFILE_ACTION)));
		registerAction(new DeleteProfile(this, className, DELETEPROFILE_ACTION, getAction(LISTSTAFF_ACTION)));
	}

	protected final String parseClassName(String fqcn)
	{
		String className = fqcn;

		int lastDotIndex = fqcn.lastIndexOf('.');
		if (lastDotIndex > -1) className = fqcn.substring(lastDotIndex + 1);

		return className;
	}

	protected void registerAction(LessonAction action)
	{
		lessonFunctions.put(action.getActionName(), action);
	}

	public String[] getStages()
	{
		return new String[] {};
	}

	protected List<String> getHints(WebSession s)
	{
		return new ArrayList<String>();
	}

	public String getInstructions(WebSession s)
	{
		return "";
	}

	protected LessonAction getAction(String actionName)
	{
		return lessonFunctions.get(actionName);
	}

	public void handleRequest(WebSession s)
	{
		if (s.getLessonSession(this) == null) s.openLessonSession(this);

		String requestedActionName = null;
		try
		{
			requestedActionName = s.getParser().getStringParameter("action");
		} catch (ParameterNotFoundException pnfe)
		{
			// Let them eat login page.
			requestedActionName = LOGIN_ACTION;
		}

		try
		{
			LessonAction action = getAction(requestedActionName);
			if (action == null)
			{
				setCurrentAction(s, ERROR_ACTION);
			}
			else
			{
				// System.out.println("GoatHillsFinancial.handleRequest() dispatching to: " +
				// action.getActionName());
				if (action.requiresAuthentication())
				{
					if (action.isAuthenticated(s))
					{
						action.handleRequest(s);
					}
					else
						throw new UnauthenticatedException();
				}
				else
				{
					// Access to Login does not require authentication.
					action.handleRequest(s);
				}
			}
		} catch (ParameterNotFoundException pnfe)
		{
			//System.out.println("Missing parameter");
			pnfe.printStackTrace();
			setCurrentAction(s, ERROR_ACTION);
		} catch (ValidationException ve)
		{
			//System.out.println("Validation failed");
			ve.printStackTrace();
			setCurrentAction(s, ERROR_ACTION);
		} catch (UnauthenticatedException ue)
		{
			s.setMessage("Login failed");
			//System.out.println("Authentication failure");
			ue.printStackTrace();
		} catch (UnauthorizedException ue2)
		{
			s.setMessage("You are not authorized to perform this function");
			//System.out.println("Authorization failure");
			setCurrentAction(s, ERROR_ACTION);
			ue2.printStackTrace();
		} catch (Exception e)
		{
			// All other errors send the user to the generic error page
			//System.out.println("handleRequest() error");
			e.printStackTrace();
			setCurrentAction(s, ERROR_ACTION);
		}

		// All this does for this lesson is ensure that a non-null content exists.
		setContent(new ElementContainer());
	}

	public boolean isAuthorized(WebSession s, int userId, String functionId)
	{
		// System.out.println("Checking authorization from " + getCurrentAction(s));
		LessonAction action = getAction(getCurrentAction(s));
		return action.isAuthorized(s, userId, functionId);
	}

	public int getUserId(WebSession s) throws ParameterNotFoundException
	{
		LessonAction action = getAction(getCurrentAction(s));
		return action.getUserId(s);
	}

	public String getUserName(WebSession s) throws ParameterNotFoundException
	{
		LessonAction action = getAction(getCurrentAction(s));
		return action.getUserName(s);
	}

	protected String getJspPath()
	{
		return "/lessons/" + getLessonName() + "/";
	}

	public String getTemplatePage(WebSession s)
	{
		return getJspPath() + getLessonName() + ".jsp";
	}

	public String getPage(WebSession s)
	{
		String page = getJspPath() + getCurrentAction(s) + ".jsp";

		return page;
	}

	protected Integer getDefaultRanking()
	{
		return DEFAULT_RANKING;
	}

	public String getTitle()
	{
		return "Goat Hills Financials";
	}

	public String getSourceFileName()
	{
		// FIXME: Need to generalize findSourceResource() and use it on the currently active
		// LessonAction delegate to get its source file.
		// return findSourceResource(getCurrentLessonScreen()....);
		return super.getSourceFileName();
	}

	@Override
	protected boolean getDefaultHidden()
	{
		return getClass().equals(GoatHillsFinancial.class);
	}

	public Element getCredits()
	{
		return super.getCustomCredits("", ASPECT_LOGO);
	}

	@Override
	protected String getLessonName()
	{
		String className = getClass().getName();
		int index = className.lastIndexOf('.');
		if (index > -1) return className.substring(index + 1);
		return super.getLessonName();
	}
}
